Nobody I follow (including some prominent bloggers and YouTubers) claiming productivity increase is recording or detailing any workflow or showing real world, non-hobby (scalable, maintainable, readable, secure, etc.) workflows of how to do it. It's like everyone who "knows what they are doing" is hiding what the secret sauce for a competitive edge or that they are all just mediocre SWEs hyping AI up and lying because it makes them more money.
Even real SWEs in large companies I know can't really seem to tell me how their productivity is increasing, and when you dig deeper it always seem to be well-scoped and well-understood problems (which is great, but doesn't match the level of hype and productivity increase that everyone else is claiming) -- and they still have to be very careful with reviewing (for now).
It's almost like AI makes SWE brains go mush and forget about logic and data.